chore(ui): Make Clippy happy.

Author: Hywan

crates/matrix-sdk-ui/src/timeline/controller/observable_items.rs

@@ -553,6 +553,7 @@ impl<'e> ObservableItemsTransactionIterBuilder<'e> {
     }
 
     /// Build the iterator.
+    #[allow(clippy::iter_skip_zero)]
     fn build(self) -> ObservableItemsTransactionIter<'e> {
         // Calculate the size of the _start_ region.
         let size_of_start_region = if matches!(
@@ -626,6 +627,7 @@ impl<'e> ObservableItemsTransactionIterBuilder<'e> {
 
 /// An iterator over timeline items.
 pub(crate) struct ObservableItemsTransactionIter<'observable_items_transaction> {
+    #[allow(clippy::type_complexity)]
     inner: Take<
         Skip<
             Enumerate<
@@ -647,13 +649,13 @@ impl<'e> Iterator for ObservableItemsTransactionIter<'e> {
     }
 }
 
-impl<'e> ExactSizeIterator for ObservableItemsTransactionIter<'e> {
+impl ExactSizeIterator for ObservableItemsTransactionIter<'_> {
     fn len(&self) -> usize {
         self.inner.len()
     }
 }
 
-impl<'e> DoubleEndedIterator for ObservableItemsTransactionIter<'e> {
+impl DoubleEndedIterator for ObservableItemsTransactionIter<'_> {
     fn next_back(&mut self) -> Option<Self::Item> {
         self.inner.next_back()
     }

crates/matrix-sdk-ui/src/timeline/event_handler.rs

@@ -1174,7 +1174,7 @@ impl<'a, 'o> TimelineEventHandler<'a, 'o> {
                         .iter_remotes_region()
                         .rev()
                         .find_map(|(timeline_item_index, timeline_item)| {
-                            timeline_item.as_event().and_then(|_| Some(timeline_item_index + 1))
+                            timeline_item.as_event().map(|_| timeline_item_index + 1)
                         })
                         .unwrap_or_else(|| {
                             // There is no remote timeline item, so we could insert at the start of
@@ -1209,7 +1209,7 @@ impl<'a, 'o> TimelineEventHandler<'a, 'o> {
                     .iter_remotes_region()
                     .rev()
                     .find_map(|(timeline_item_index, timeline_item)| {
-                        timeline_item.as_event().and_then(|_| Some(timeline_item_index + 1))
+                        timeline_item.as_event().map(|_| timeline_item_index + 1)
                     })
                     .unwrap_or_else(|| {
                         // There is no remote timeline item, so we could insert at the start of